[8u] RFR: JDK-8150460 (linux|bsd|aix)_close.c: file descriptor table may become large or may not work at all

[Andrew Dinn]

On 02/01/2020 10:12, Andrew Haley wrote:
> On 1/2/20 9:35 AM, Andrew Dinn wrote:
>> Updated Patch:
>> The patch applies cleanly after tweaking the file paths and fixing up
>> some minor whitespace and copyright headers differences
>>
>>   http://cr.openjdk.java.net/~adinn/8150460/webrev.00
> 
> OK, thanks. I too thought that the MAP_NORESERVE solution was obvious,
> but then I read the GraalVM discussion you referenced.
Yes, that is an interesting constraint which Christian Wimmer did not
actually confirm. If it really still applies (and, given that the desire
to embed GraalVM programs seamlessly into OracleDB continues to exist, I
think it does) then the Graal team's switch to using OpenJDK libraries
has two alternative consequences: it either leaves GraalVM hostage to
whatever decisions OpenJDK team members arrive at regarding importing
system APIs into native libs; or it leaves the OpenJDK team hostage to
this externally imposed restriction. I wonder if that is a good idea?

Regarding the patch: Does the above acknowledgement mean that I can push
the patch to jdk8u-dev? If so does that also imply that the JIRA label
should be switched from jdk8u-fix-request to jdk8u-fix-yes?

regards,


Andrew Dinn
-----------
Senior Principal Software Engineer
Red Hat UK Ltd
Registered in England and Wales under Company Registration No. 03798903
Directors: Michael Cunningham, Michael ("Mike") O'Neill